1. external factors-Hepatitis b virus infections usually occur in people not to eat hot, spoon in the Middle. You can stick with saliva to eat together.-Liver pathology of infection of leaves If you like eating the raw or half-cooked half-raw materials.-For those who like to drink alcoholic beverages, is a life of the mind, and those who smoke regularly.-Get the radiation from the Sun Ultra sensitivity lole is a long time.-Those who have radiation x-ray.-The substance a fla thok Xin contamination in food and beverages that we eat every day. In particular, they dried chilies, nuts, etc.-Carcinogen in grilled fried shank roast or Grill space, especially until scorched or burnt oil-fried space using repeatedly every day.-The hydrocarbons are chemicals that are used in food preservation, Chennai city, which is grown for rasa dyes fabric used as a food coloring.2. internal factors.-Caused by an internal malfunction, such as children with disabilities, but the body, which is also the origin of genetic disorders.-The body is immune defects or lack of nutrients such as vitamin a, some of them, or c, etc.
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